You don't need to add it to the table. Simply stop the application server and then delete the line from the table (You have the correct table name). Restart the app server and it should add itself to the table.
The rep_servers table cantains the correct hostname, but the java webstart is trying to connect to the old server name. How does the xpl.jnlp file that is located in \www\webstart get created. Whenever I restart the app server (ovc -start ) xpl.jnlp get re-created with the old server name (codebase="http://old-server:8088/webstart"